Make plugin dir match Go conventions.

plugin/someteam.example.com/v1/ConfigMapGenerator

@@ -0,0 +1,14 @@
+#!/bin/bash
+
+# Skip the config file name argument.
+shift
+
+echo "
+kind: ConfigMap
+apiVersion: v1
+metadata:
+  name: example-configmap-test
+data:
+  username: $1
+  password: $2
+"

plugin/someteam.example.com/v1/DatePrefixer.go

@@ -0,0 +1,37 @@
+// +build plugin
+
+package main
+
+import (
+	"sigs.k8s.io/kustomize/pkg/ifc"
+	"sigs.k8s.io/kustomize/pkg/resmap"
+	"sigs.k8s.io/kustomize/pkg/transformers"
+	"sigs.k8s.io/kustomize/pkg/transformers/config"
+)
+
+type plugin struct{}
+
+var KustomizePlugin plugin
+
+func (p *plugin) Config(
+	ldr ifc.Loader, rf *resmap.Factory, k ifc.Kunstructured) error {
+	return nil
+}
+
+// Returns a constant, rather than
+//   time.Now().Format("2006-01-02")
+// to make tests happy.
+// This is just an example.
+func getDate() string {
+	return "2018-05-11"
+}
+
+func (p *plugin) Transform(m resmap.ResMap) error {
+	tr, err := transformers.NewNamePrefixSuffixTransformer(
+		getDate()+"-", "",
+		config.MakeDefaultConfig().NamePrefix)
+	if err != nil {
+		return err
+	}
+	return tr.Transform(m)
+}

plugin/someteam.example.com/v1/PrintWorkDir

@@ -0,0 +1,13 @@
+#!/bin/bash
+set -e
+
+dir=`pwd`
+
+echo "
+kind: WorkDir
+apiVersion: v1
+metadata:
+  name: $dir
+spec:
+  path: ${KUSTOMIZE_PLUGIN_CONFIG_ROOT}
+"

plugin/someteam.example.com/v1/SedTransformer

@@ -0,0 +1,11 @@
+#!/bin/bash
+
+# Skip the config file name argument.
+shift
+
+args=""
+for arg in $@; do
+  args="$args -e $arg"
+done
+
+cat - | sed $args

plugin/someteam.example.com/v1/ServiceGenerator.go

@@ -0,0 +1,60 @@
+// +build plugin
+
+package main
+
+import (
+	"bytes"
+	"text/template"
+
+	"sigs.k8s.io/kustomize/k8sdeps/kunstruct"
+	"sigs.k8s.io/kustomize/pkg/ifc"
+	"sigs.k8s.io/kustomize/pkg/resmap"
+	"sigs.k8s.io/kustomize/pkg/resource"
+)
+
+type plugin struct {
+	ServiceName string
+	Port        string
+}
+
+var KustomizePlugin plugin
+
+var manifest = `
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    app: dev
+  name: {{.ServiceName}}
+spec:
+  ports:
+  - port: {{.Port}}
+  selector:
+    app: dev
+`
+
+func (p *plugin) Config(
+	ldr ifc.Loader, rf *resmap.Factory, k ifc.Kunstructured) error {
+	var err error
+	p.ServiceName, err = k.GetFieldValue("service")
+	if err != nil {
+		return err
+	}
+	p.Port, err = k.GetFieldValue("port")
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func (p *plugin) Generate() (resmap.ResMap, error) {
+	var buf bytes.Buffer
+
+	temp := template.Must(template.New("manifest").Parse(manifest))
+	err := temp.Execute(&buf, p)
+	if err != nil {
+		return nil, err
+	}
+	rf := resmap.NewFactory(resource.NewFactory(kunstruct.NewKunstructuredFactoryImpl()))
+	return rf.NewResMapFromBytes(buf.Bytes())
+}

plugin/someteam.example.com/v1/StringPrefixer.go

@@ -0,0 +1,46 @@
+// +build plugin
+
+// Assuming GOPATH is something like
+//   ~/gopath
+// and this source file is located at
+//   $GOPATH/src/sigs.k8s.io/kustomize/plugins/StringPrefixer.go,
+// build it like this:
+//   dir=$GOPATH/src/sigs.k8s.io/kustomize/plugins
+//   go build -buildmode plugin -tags=plugin \
+//     -o $dir/StringPrefixer.so $dir/StringPrefixer.go
+
+package main
+
+import (
+	"fmt"
+	"sigs.k8s.io/kustomize/pkg/ifc"
+	"sigs.k8s.io/kustomize/pkg/resmap"
+	"sigs.k8s.io/kustomize/pkg/transformers"
+	"sigs.k8s.io/kustomize/pkg/transformers/config"
+)
+
+type plugin struct {
+	prefix string
+}
+
+var KustomizePlugin plugin
+
+func (p *plugin) Config(
+	ldr ifc.Loader, rf *resmap.Factory, k ifc.Kunstructured) error {
+	name := k.GetName()
+	if name == "" {
+		return fmt.Errorf("name cannot be empty")
+	}
+	p.prefix = name + "-"
+	return nil
+}
+
+func (p *plugin) Transform(m resmap.ResMap) error {
+	tr, err := transformers.NewNamePrefixSuffixTransformer(
+		p.prefix, "",
+		config.MakeDefaultConfig().NamePrefix)
+	if err != nil {
+		return err
+	}
+	return tr.Transform(m)
+}

plugin/someteam.example.com/v1/kvMaker.go

@@ -0,0 +1,27 @@
+// +build plugin
+
+package main
+
+var database = map[string]string{
+	"TREE":      "oak",
+	"ROCKET":    "Saturn V",
+	"FRUIT":     "apple",
+	"VEGETABLE": "carrot",
+	"SIMPSON":   "homer",
+}
+
+type plugin struct{}
+
+var KVSource plugin
+
+func (p plugin) Get(
+	root string, args []string) (map[string]string, error) {
+	r := make(map[string]string)
+	for _, k := range args {
+		v, ok := database[k]
+		if ok {
+			r[k] = v
+		}
+	}
+	return r, nil
+}